Table 2.

Model cost inputs

Cost variable	NHS cost	Private cost	Source
Carrier test (woman)	Midwife = £8.80	£11.47	Dormandy et al, 20102; Curtis and Netten, 20066
	Primary care parallel = £13.51
	Primary care sequential = £12.30
Carrier test (father)	Midwife = £5.74	£11.47	Dormandy et al, 20102; Curtis and Netten, 20066
	Primary care parallel = £6.09
	Primary care sequential = £5.74
Carrier status counselling (woman only)	£16.13	£6.18	Roberts et al, 200713; Curtis and Netten, 20066
Carrier status counselling (couple)	£47.63	£10.27	Roberts et al, 200713; Curtis and Netten, 20066
PND	£343.23	£67.18	Bricker et al, 200014; Department of Health, 20065
TOP counselling	£47.25	£10.27	Curtis and Netten, 20066
TOP procedure	£489.00	£67.18	Department of Health, 20065

PND = prenatal diagnosis. TOP = termination of pregnancy. Private costs refer to additional costs incurred by patients.